hey,your guys,i'm looking for some good web or blog or other resources for fixed income market(trading,analysis are both ok),could you please give me some help?

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I remember noticing specific corporate bonds do not trade every business day. It is difficult, maybe impossible for me to obtain or make records of daily price data or graphs of daily price data for corporate debt issues. US Government bonds and notes are more often traded and I might find price data. There is a problem in that a 10 year treasury note, one year after issue is now a 9 year treasury note and I might not find price data for a 9 year treasury note .

My solution is to trade tnote or tbond futures using futures market price data. Futures prices are published and available. I splice individual contract price series together to make a continuous price series for trading system development.